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DESCRIPTION JPS5513668

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DESCRIPTION JPS5513668
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional
ultrasonic cleaner, FIG. 2 is a cross-sectional view of its main parts, and FIG. 3 is an ultrasonic
cleaner according to an embodiment of the present invention. FIG. 4 is a perspective view of the
main parts. 13 ...... A1 disc, 14 ...... electrostrictive oscillator, 15 ...... feeding lead wire, 15a ......
soldering is part, 15b · · ····adhesive.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic
vibration generator, and more particularly to an ultrasonic cleaner, and the object of the present
invention is to solder the electrostrictive vibrator and the lead wire for feeding to remove the
part. And to prevent the generation of cracks in the vibrator and to provide a product with a long
life. Conventionally, in an ultrasonic cleaner, as shown in FIG. 1, the A1 disk 3 is adhered to the
outer bottom surface of the cleaning crucible 2 containing the cleaning solution 1, and the A1
disk 3 is electrostrictive. The element 4 is bonded to form a bimorph structure, and one of the
feed electrodes to the feed electrode is connected to one of the vapor deposition electrodes of the
electrical communication / 1 / / / '2-strain oscillator 4 and the other of the vapor deposition
electrodes And the other feeding lead wire 6 is connected to the A1 disk 3 electrically connected
thereto, and the electrostrictive vibrator 4 is vibrated by applying a high frequency voltage
through the feeding lead a6, 6 Then, it is transmitted to the cleaning liquid 1 through the
cleaning tank 2 and can be cleaned. However, since the power supply lead wire 6 is soldered to
the vapor deposition electrode on the surface of the electrostrictive vibrator 4, the gravity of the
power supply lead wire 5 is applied to the soldered portion of the electrostrictive vibrator 4, and
The vibration of the vibrator 4 is in the radial direction and is adhered to the A1 disk 3.
Therefore, the vibration as shown in FIG. 2 is obtained by simulation, so that the soldered portion
of the power supply lead wire 5 is Since it moves up and down in synchronization with the
frequency of the high frequency voltage supplied, the vibration of the electrostrictive vibrator 4
causes a defect such as peeling of a part or cracking of the electrostrictive vibrator 4. . The
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present invention has been made in view of such conventional problems, and will be described
below with reference to A3) 3 1 □ and a drawing of FIG. 4 showing one embodiment of the
present invention. In the figure, 10 is a washing tank, and the washing | cleaning liquid 11 is
accommodated in this inside. A bimorph oscillator 12 is adhered to the outer bottom surface of
the cleaning tank 10. The bimorph oscillator 12 is configured by electrically bonding one surface
of the electrostrictive oscillator 140 to the A1 disk 13. 15.16 is a lead wire for feeding, and one
lead wire 16 for feeding is electrically connected to the silver vapor deposition electrode of the
electrostrictive vibrator 14, and the other lead wire 16 for feeding is an electrostrictive vibrator
It is electrically connected to the A1 disk 13 electrically connected to the other vapor deposition
electrode 14 of 14. 15a and 16a are parts of soldering to which the electrical connection is
made. Here, the lead wire 16 for power supply electrically connected directly to the vapor
deposition electrode of the electrostrictive vibrator 14 by soldering has a slight bending at the
part away from the portion 16a and has a resilient bonding. It is adhered by the agent.
Although it is better to look at the adhesive part 15b∼ and the soldered part by this adhesive, it
can be separated from the part 15M) in the present embodiment, it is separated by about 10 to
30 w. Although the bonding portion 1 sb is provided on the strain oscillator 14, the invention is
not limited to this. In the ultrasonic cleaner of the present invention according to the above
configuration, when a high frequency voltage is applied through the feeding lead wire 15.16, the
electrostrictive vibrator 14 vibrates in synchronization with the frequency of the applied voltage
in the radial direction, Since it is adhered to the rigid disk A1 disk 13, the vibration in the radial
direction becomes bending vibration as shown in the figure, and the vibration is transmitted to
the cleaning tank 10 and the cleaning solution 11, and the cleaning becomes possible. In general,
the frequency of the electrostrictive vibrator 14 is substantially the same as the frequency of the
applied voltage, resulting in frequency oscillation of 20 to eOK Hz. Accordingly, soldering of the
lead wire 160 for power feeding causes the portion 16 a to vibrate up and down at a high speed,
and if weight is applied to that portion, the soldering will peel off the portion 16 a or the
electrostrictive vibrator 14. Although a crack occurs, according to the present invention, such a
thing is eliminated. 6--In the present invention, the power supply lead wire 15 is bonded with a
resilient adhesive and separated from the bonded portion 15b. Since the feeding IJ-wire 16 is
bent in the part and electrically connected by soldering, the elasticity of the adhesive of the
bonding portion 15b absorbs the vibration in the electrostrictive vibrator 14, and the lead wire
for feeding The effect of the weight 16 is alleviated, and the soldering of the lead wire 15 for
feeding hardly causes the gravity of the lead wire 15 for feeding to the portion 15a, and the
soldering causes peeling or electrostriction of the portion 15a. The crack of vibrator 14 It has
never Jill. As described above, according to the present invention, the soldering between the
electrostrictive vibrator and the lead wire for feeding does not cause part peeling or cracking of
the electrostrictive vibrator, so that the life can be extended. High effects can be obtained.
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